JPH0471002A - Connector - Google Patents

Abstract

PURPOSE:To obtain a connector capable of preventing the disconnection of a loop line even when a control device is disconnected by closing a relay and connecting an input cable to an output cable at the time of disconnecting the connector from the control device. CONSTITUTION:When an uninterruptive power supply part 45 in an I/O control device 27 is turned on, a relay driving power is supplied to a relay driving part 39. When a failure is detected on a part of the device 27 and the disconnection of the connector 46 from the device 27 is necessary in order to replace the device 27, no power is supplied to the relay driving part 39. Thereby, the driving part 39 is not driven, relays 37, 38 are closed and the 1st signal lines 30, 31 are connected to the 2nd signal lines 32, 33 through the 3rd signal lines 35, 36. Thereby, electric connection between the input and output cables 23, 24 is still held and the disconnection of the loop line is not generated. Thereby, the control of the whole system based upon the system control device is not disabled.

Description

[Detailed Description of the Invention] [Summary] An object of the present invention is to provide a connector that is connected to a controlled device in a power supply control system, and which prevents the loop line from being disconnected even if the controlled device is removed. The first cable connected to the input cable and output cable of a second connection part, and a third connection part connected to the input side connector and the output side connector of the device. a fourth connection part;
It is composed of a circuit for connecting the loop line, a relay for disconnecting or connecting the circuit, a relay drive section for driving the relay to open and close, and a fifth connection section for supplying power to the relay drive section.

[Industrial Application Field] The present invention relates to a connector connected to a controlled device in a power supply control system.

In a computer system, the system's constituent devices are connected through a loop line, and a system controller controls power on and off of the entire system.

The input/output control device, which is a system component device, is connected to the previous device through the input cable connector and its own connector, and to the next device through its own connector and the output cable connector. connected.

Therefore, it is necessary to develop a connector to prevent the loop line from becoming open even when a part of the input/output control device is broken and the input/output control device is replaced.

[Prior Art] FIG. 4 is a diagram showing an example of a power supply control system in an electronic computer system.

In FIG. 4, 1 is a system control device, and the system control device 1 is connected via a loop line 2 to a central processing unit 3 and an input/output control device 4, which are system constituent devices. Thereby, the system control device 1 controls the power on and off of the central processing device 3 and the input/output control device 4.

Next, FIG. 5 shows an example of a power supply control system circuit of an input/output control device.

In FIG. 5, the previous input/output control device is connected to the input/output control device 4 via the connector 6 of the input cable 5 and the connector 7 of the input/output control device 4. In FIG. Further, the input/output control device 4 is connected to the next input/output control device via its connector 8 and the connector 10 of the output cable 9.

Reference numeral 11 denotes an uninterruptible power supply section, which supplies power to the receiving circuit 12, the transmitting circuit 13, and the logic circuit network 14, and also opens the relay 15 when it is on and closes the relay 15 when it is off. Close.

The logic circuit network 14 sends the on signal and the off signal to the power supply section 16.
It controls the power supply unit 16 to turn on and off, and also receives a power-on completion signal from the power supply unit 16.

Therefore, when the uninterruptible power supply section 11 is off, the relay 15 is closed and the electrical signal sent from the system control device 1 is sent as is to the next input/output control device. This is done when the input/output control device 4 is out of order and some parts need to be replaced.

[Problems to be Solved by the Invention] However, in such a conventional connector connection method, when a failure is discovered in a part of the input/output control device and the input/output control device is replaced, the loop line Since the cable had to be removed, the loop line became open, which appeared to be a line failure from the system control device's perspective, making it impossible to control the entire system.

The present invention has been made in view of such conventional problems, and an object of the present invention is to provide a connector that does not cause loop line disconnection even when a controlled device is removed.

[Means to solve the problem] FIG. 1 is a diagram explaining the principle of the present invention.

In FIG. 1, 21.22 is the first.
The second connection part, 25.26 is the input side connector 2 of the device 27
8 and the third connector connected to the output side connector 29. A fourth connection section 34 is a circuit for connecting the loop line, 3
7.38 is a relay for disconnecting or connecting the circuit 34, 3
9 is a relay drive unit that drives the relays 37 and 38 to open and close;
Reference numeral 40 denotes a fifth connection portion that supplies power to the relay driving portion 39.

[Operation] When a failure is discovered in a part of the device (input/output control device) and the device is to be replaced, the connector is removed from the device while the cable and connector are connected.

In this state, relay drive power is not supplied to the relay drive section, so the relay drive section operates to close the relay. When the relay closes, the input cable and output cable are connected through the circuit, so the loop line will not be disconnected.

Therefore, since the loop line is not opened, it is possible to prevent the system control device from being unable to control the entire system.

[Example] Embodiments of the present invention will be described below based on the drawings.

FIGS. 2 and 3 are diagrams showing one embodiment of the present invention.

First, to explain the configuration, in FIG. 2, 21 is the first
The connecting portion 22 is a second connecting portion, the first connecting portion 21 is connected to the input cable 23 of the loop line, and the second connecting portion 22 is connected to the output cable 24 of the loop line.

25 is a third connection portion, 26 is a fourth connection portion, the third connection portion 25 is connected to the input side connector 28 of the input/output control device 27, and the fourth connection portion 26 is connected to the output side of the input/output control device 27. Connected to connector 29.

A first signal line 3 is connected between the first connection part 21 and the third connection part 25.
0.31, second signal lines 32 and 33 are connected between the second connection part 22 and the fourth connection part 26, respectively, and these first. The second signal lines 30 to 33 collectively constitute a circuit 34 for connecting the loop line.

A third signal line 35.36 is connected between the first signal line 30.31 and the second signal line 32.33.
Relays 37, 38 are provided on 36 for disconnecting or connecting said circuit 34.

Reference numeral 39 denotes a relay drive unit that opens and closes the relays 37 and 38, and the relay drive unit 39 is connected to a fifth connection unit 40 for supplying relay drive power from the input/output control device 27 to the relay drive unit 39. It is possible.

The input side connector 28 is connected to the receiving circuit 41, and the output side connector 29 is connected to the transmitting circuit 42.
1 gives the received signal to the logic circuit network 43, and the transmitter circuit 42 receives the transmit signal from the logic circuit network 43. logic circuit network 43
controls the power supply section 44 on and off, and receives a power-on completion signal from the power supply section 44 . The uninterruptible power supply unit 45 is connected to the receiving circuit 41
, supplies power to the transmitting circuit 42 and logic circuit network 43, and supplies relay drive power to the relay drive unit 39.

Next, FIG. 3 shows the external appearance of the connector of the present invention.

In FIG. 3, the first . Second connection part 21
．． 22 is formed with threaded portions 47 and 48, respectively, and
It has insertion holes 49° and 50 into which the input cable 23 and output cable 24 are inserted, respectively. Third. The fourth connecting portion 25,26 has protrusions 51,52 that are inserted into the input connector 28 and the output connector 29, respectively.

Next, the effect will be explained.

When the connector 46 is inserted between the input/output control device 27 and the cable 23.24, and the uninterruptible power supply section 45 of the input/output control device 27 is on, relay driving power is supplied to the relay drive section 39. Therefore, the relay drive section 39 operates and opens the relays 37 and 38.

At this time, the power control system circuit of the input/output control device 27 operates, and the electrical signal from the higher-level device connected via the loop line can be transferred to the lower-level device connected via the loop line.

Here, it is assumed that a failure is discovered in a part of the input/output control device 27 and the connector 46 is removed from the input/output control device 27 in order to replace the input/output control device 27. In this state, power is not supplied to the relay drive unit 39, so the relay drive unit 39 does not operate, the relays 37.38 are closed, and the first signal line 30.31 and the second signal line 32.33 are connected to the third It is connected via signal lines 35 and 36. Therefore, the input cable 23 and the output cable 24 remain electrically connected, preventing the loop line from being disconnected.

Therefore, since the loop line does not become open, the control of the entire system by the system control device will not become impossible.

[Effects of the Invention] As explained above, according to the present invention, when the connector is removed from the device, the relay is closed and the input cable and the output cable are connected.
Loop line disconnection can be prevented, and loss of control of the entire system can be avoided.

[Brief explanation of drawings]

FIG. 1 is a diagram explaining the principle of the present invention, FIG. 2 is a diagram showing an embodiment of the present invention; Figure 3 is an external view of the connector. Figure 4 is a diagram showing the power supply control system; FIG. 5 is a diagram showing the connection of a conventional connector. In the figure, 21... first connection part, 22... second connection part, 23...Input cable, 24...Output cable, 25...Third connection part, 26... fourth connection part, 27... input/output control device, 8...Input side connector, 9...Output side connector, 0.31...first signal line, 2.33...Second signal line, 4...Circuit, 5.36...Third signal line, 7.38...Relay 9...Relay drive section, 0...5th connection part, 1...receiving circuit, 2... Transmission circuit, 3...Logic circuit network, 4...Power supply section, 5... Uninterruptible power supply section, 6... Connector, 7.48...Threaded part, 9.50...insertion hole, 1.52... Protrusion.

Claims (1)

[Claims] first and second connection parts (21) connected to the input cable (23) and output cable (24) of the loop line;
(22) and the third and fourth connection parts (25) and (26) connected to the input side connector (28) and output side connector (29) of the device (27), and the loop line. circuit (34), relays (37), (38) that disconnect or connect the circuit (34), and the relay (37)
, (38), a relay drive section (39) that drives opening and closing, and a fifth connection section (4) that supplies power to the relay drive section (39).
0).